Senior Mining Estimator

Make your mark with Thiess

Everyday all around the world Thiess supports and celebrates our people. We recognise talent and reward transparency. We champion diversity and embrace change.

Join us. Hone your skills and develop new ones. Take on big challenges and grow through mentorship collaboration and empowerment.

Thiess is the place to make things happen.

What youll do

Reporting to the Principal Estimator you will play a key role in preparing competitive and accurate tender submissions while providing valuable commercial and technical insights to support business growth.

Key responsibilities

• Lead the development of detailed cost estimates and tender submissions for mining projects.
• Work closely with mine planning engineers to optimise mine plans for tender opportunities.
• Analyse direct costs overheads production data and site performance to inform tender pricing.
• Support project budgeting activities and identify opportunities to improve operational cost effectiveness.
• Apply commercial and contractual knowledge to ensure estimates align with project requirements.
• Collaborate with stakeholders across engineering finance legal operations and project teams.
• Contribute to continuous improvement initiatives and support knowledge sharing across the estimating team.
• Champion Thiess commitment to safety sustainability and operational excellence.

What youll bring

Youll be a commercially minded mining professional who combines strong technical expertise with exceptional analytical and stakeholder engagement skills.

• Relevant tertiary qualifications in Mining Engineering Civil Engineering Surveying or a related discipline.
• 8 years experience within a mining engineering environment.
• Experience working on large-scale open-cut and/or underground mining operations.
• Strong mine design planning and scheduling experience.
• Demonstrated experience developing mining tenders and cost estimates.
• Knowledge of mining principles operations and relevant regulatory requirements.
• High proficiency with mine planning design scheduling and estimating systems including CATS.
• Advanced analytical skills with the ability to connect technical outcomes to commercial performance.
• Strong communication and stakeholder management capabilities.

What we offer

• Flexible hybrid work model
• Supportive inclusive culture that values innovation and continuous improvement
• Opportunity to work with an amazing team on a high impact project
• Collaborative values-led culture with a global reach.
• Access to leading-edge technology and systems.
• Competitive salary and employee benefits package

About us

Thiess works with clients in Australia Asia and the Americas in the dynamic field of open-cut and underground mining.

The pioneering spirit of our founders the legendary Thiess brothers is our legacy and inspires our vision to harness the power of people and technology to drive sustainable change.

At Thiess you will have the opportunity to play a part in the global energy transition. We are growing our commodities portfolio to include metals and minerals critical to the energy transition and developing services to enable sustainable mining.

Were creating a culture of curiosity knowledge-sharing and continuous learning supporting our people to contribute to Thiess success and continued growth in sustainable mining.

Well support you to hone your skills and develop new ones take on challenges and grow through mentorship collaboration and empowerment. We offer our people ongoing technical training and development opportunities so they can reach their full potential. We also invest in the workforce of the future with a range of programs for people starting their careers.

We recognise the value of an inclusive and diverse workplace through our vision of better together. Were focused on creating an inclusive environment to enable our people to bring their best self to work because they feel safe included and empowered.

Learn more you require assistance applying for this opportunity please contact us at

How to Apply

This role is an opportunity to take the next step in your career. With our culture of recognition development and a stimulating and satisfying work environment there is no better time to join Thiess.

Thiess follows a Pre-Employment Process for all successful applicants which includes two employment references a National Police Check and a medical assessment. These checks are essential to your application and your recruiter will support you through the process.

Please click the apply button to apply for this role.

Applications close: Friday 24 July 2026

How to apply

Applications close

24 Jul 2026 E. Australia Standard Time